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EP0726069A2 - Patientenliegetische - Google Patents

Patientenliegetische Download PDF

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Publication number
EP0726069A2
EP0726069A2 EP96300179A EP96300179A EP0726069A2 EP 0726069 A2 EP0726069 A2 EP 0726069A2 EP 96300179 A EP96300179 A EP 96300179A EP 96300179 A EP96300179 A EP 96300179A EP 0726069 A2 EP0726069 A2 EP 0726069A2
Authority
EP
European Patent Office
Prior art keywords
shaft
gear
support part
patient support
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96300179A
Other languages
English (en)
French (fr)
Other versions
EP0726069A3 (de
Inventor
Keith Hannant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Publication of EP0726069A2 publication Critical patent/EP0726069A2/de
Publication of EP0726069A3 publication Critical patent/EP0726069A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/1245—Knees, upper or lower legs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/128—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations
    • A61G13/129—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations having surface parts for adaptation of the size, e.g. for extension or reduction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/50—Information related to the kind of patient or his position the patient is supported by a specific part of the body
    • A61G2200/56—Calf

Definitions

  • This invention relates to patient support tables of the kind having an articulated limb section comprising first and second articulated parts, the first part being connected to the table and the second part being connected to the first part, the first part having a rotatable shaft extending along its length, the shaft being coupled via a gear at one end of the shaft to a cooperating gear such that raising or lowering the first part causes the shaft to rotate, and the shaft having a gear at its opposite end that engages a gear on the second part such that rotation of the shaft causes a raising or lowering of the second part.
  • leg sections for supporting the legs.
  • Each leg section is articulated at the hip and the knee so that the section can be put into various different positions.
  • the upper part of the section, on which the thigh is supported has a shaft running along its length.
  • the shaft is coupled at its upper end, towards the hip of the patient, by a bevel gear that engages a fixed gear.
  • the shaft has a second bevel gear coupled to a gear attached to the upper end of a lower section, on which the calf is supported.
  • Rotating the upper part of the section about the hip joint to raise the knee causes the shaft to rotate, which in turn causes the lower part of the section to rotate in the opposite sense, to lower the foot end of the lower part.
  • the leg section mimics the behaviour of the human leg when this is raised.
  • leg section lock When the leg section lock is released, it is free to be moved in any direction.
  • the leg section can be heavy, especially when supporting the weight of the patient's leg. If the leg section were inadvertently released during manoeuvring, it would be free to fall, with the risk of injuring the patient and theatre staff. It might also cause damage to the operating table itself or to other equipment in the near vicinity.
  • a patient support table of the above-specified kind characterised in that the limb section has a unidirectional device that normally prevents rotation of the shaft in one direction but is releasable to allow rotation in that direction.
  • the unidirectional means is preferably a ratchet and pawl.
  • the ratchet may be a wheel fixed with the shaft and the pawl may be coupled with a manually-engageable button.
  • the first part of the limb section is preferably coupled with the table by means of a ball joint fixed with the table and a bevel gear displaceable around the ball joint about a vertical axis.
  • the table preferably includes two limb sections arranged to support the legs of a patient, the limb sections being connected with the table at one end of the table, and each first part supporting a thigh and each second part supporting a calf.
  • the operating table includes a generally rectangular support section 1 mounted at the upper end of a vertical support column (not shown) in the usual way.
  • the rectangular section 1 is adapted to support the head and torso of the patient.
  • the table also has two, narrower leg support sections 2 and 3 mounted at the right-hand, hip end of the torso section 1.
  • the leg sections 2 and 3 are of similar construction so oily the section 3 for supporting the right leg, will be described.
  • the section 3 has two parts or leaves 30 and 31 arranged to support the thigh and calf respectively.
  • the first, thigh leaf 30 is coupled to the main support section 1 at one end by a joint 32.
  • the joint 32 comprises a ball 33 about which the thigh leaf 30 is rotatable.
  • the ball 33 is fixed at one end of a short arm 35 projecting horizontally from the end of the main support section 1.
  • a bevel gear ring 36 encompasses the ball 33 and is oriented in a vertical plane.
  • the bevel gear ring 36 has a pin that engages a track (not shown) extending horizontally around the ball 33 by about 90°, so that the gear ring can be rotated through about 90° but only about a vertical axis.
  • the gear ring 36 has teeth around its inner face 37 that mesh with teeth around a second bevel gear 40, which forms a part of the joint 32.
  • the second bevel gear 40 is fixed at the left end of a rotatable lay shaft 41 extending axially along the thigh leaf 30 within its outer housing 47.
  • a third bevel gear 42 at the opposite end of the shaft 41 rotates with the shaft.
  • the third bevel gear 42 forms a part of a joint 43 between the thigh leaf 30 and the calf leaf 31 located in the region of the patient's knee.
  • the joint 43 is completed by a fourth bevel gear 44 fixed to a short, horizontal stud shaft 45.
  • the fourth bevel gear 44 lies in a vertical plane and has teeth on its outwardly-facing side 46 meshing with teeth around the third bevel gear 42.
  • the shaft 41 Towards its left-hand, hip end, the shaft 41 has a ratchet wheel 50, as shown in Figures 3 to 5, fixed with it so that the ratchet wheel rotates with the shaft.
  • the wheel 50 has a series of teeth 51 around its edge each of which has one long, shallow edge 52 and another short, steep edge 53.
  • the ratchet 50 is engaged by a catch or pawl lever 54 pivoted midway along its length, which has one end 55 urged by a spring 56 into contact with the teeth 51.
  • the end 55 of the pawl lever 54 is shaped to lie between the steep edge 53 of one tooth 51 and the shallow edge 52 of an adjacent tooth.
  • the other end 57 of the pawl lever 54 is coupled with a manually-engageable release button 58, which extends though an opening 59 in the side surface of the housing 47 to lie flush with its outer surface.
  • the pawl lever 54 allows the shaft 41 to rotate in an anti-clockwise sense, because the end 55 of the lever can ride up the shallow edge 52 of the teeth 51.
  • the pawl lever 54 prevents the shaft 41 rotating in the opposite direction because the lever is unable to ride up the steep edge 53 of the teeth.
  • the lever 54 can be lifted from engagement with the ratchet wheel 50, to allow free rotation of the shaft 41 in either direction, by pressing the release button 58 inwardly.
  • the spring 56 rotates the pawl lever 54 back into engagement with the ratchet wheel 50 to prevent further clockwise rotation.
  • the ratchet 50 and pawl 54 therefore, act as a unidirectional device that can be released to allow rotation of the shaft 41 in the other direction.
  • the calf leaf 31 is fixed at its left-hand end to the stud shaft 45 to extend radially from the shaft, so that it is rotated with the shaft about its axis.
  • the two leg sections 2 and 3 can be brought together or abducted by rotating them about the vertical axis 34 through each joint 32 in the region of the hip of the patient.
  • a lock is used to clamp the thigh leaf 30 to the ball 33 and prevent further movement about the vertical axis 34 once the desired angle in the horizontal plane has been set.
  • the calf leaf 31 With the thigh leaf 30 horizontal, the calf leaf 31 also extends horizontal, so that the leg section 2 or 3 is flat and straight.
  • the leg sections 2 and 3 can be raised by lifting the knee end of the thigh leaf 30 about the joint 32.
  • the second bevel gear 40 rotates around the gear ring 36, thereby rotating the shaft 41 in an anticlockwise sense, when viewed from the foot end.
  • the pawl lever 54 would prevent rotation of the shaft 41 in a clockwise sense and would also, therefore, prevent the leg section dropping. This prevents injury to the patient or to theatre staff that might otherwise be caused by the leg section falling. It also facilitates manipulation, because the leg section can be lifted without the need to release any lock.
  • unidirectional means could be associated with the shaft to permit movement in one direction but prevent movement in the opposite direction until released.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
EP96300179A 1995-02-08 1996-01-10 Patientenliegetische Withdrawn EP0726069A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9502436.0A GB9502436D0 (en) 1995-02-08 1995-02-08 Patient support tables
GB9502436 1995-02-08

Publications (2)

Publication Number Publication Date
EP0726069A2 true EP0726069A2 (de) 1996-08-14
EP0726069A3 EP0726069A3 (de) 1996-11-06

Family

ID=10769267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96300179A Withdrawn EP0726069A3 (de) 1995-02-08 1996-01-10 Patientenliegetische

Country Status (3)

Country Link
EP (1) EP0726069A3 (de)
GB (2) GB9502436D0 (de)
ZA (1) ZA96479B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865384A1 (fr) * 2004-01-23 2005-07-29 Philippe Daury Systeme de deplacement d'elements de tables d'operation par moteur a recuperation d'energie et liberation controlee
CN108542678A (zh) * 2018-05-11 2018-09-18 石家庄高新区亿成科技有限公司 手术床板补偿装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9607595D0 (en) * 1996-04-12 1996-06-12 Smiths Industries Plc Patient support tables
GB9624990D0 (en) 1996-11-30 1997-01-15 Smiths Industries Plc Patient support table

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556308A (de) * 1967-12-14 1969-02-07
GB2067414A (en) * 1980-01-23 1981-07-30 Marzet Rene Ets Hinged fitting for supporting the lower limbs of a patient lying on an operating table

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB346582A (en) * 1930-04-24 1931-04-16 Robert John Evans An improvement in or relating to devices for feeding clay and the like to dies
US4239200A (en) * 1979-02-05 1980-12-16 Sarrafian Shahan K Foot-ankle surgical table
SE434910B (sv) * 1981-02-13 1984-08-27 Landstingens Inkopscentral Anordning for instellning av fotstod och benstod vid ett forlossningsbord
US4872656A (en) * 1981-12-21 1989-10-10 American Sterilizer Company Orthopedic table with movable upper body and sacrum supports
DE3218328A1 (de) * 1982-05-14 1983-11-17 Stierlen-Maquet Ag, 7550 Rastatt Operationstisch
WO1985000967A1 (en) * 1983-08-24 1985-03-14 Rwm Kinetic Enterprises, Inc. Therapeutic table

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556308A (de) * 1967-12-14 1969-02-07
GB2067414A (en) * 1980-01-23 1981-07-30 Marzet Rene Ets Hinged fitting for supporting the lower limbs of a patient lying on an operating table

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865384A1 (fr) * 2004-01-23 2005-07-29 Philippe Daury Systeme de deplacement d'elements de tables d'operation par moteur a recuperation d'energie et liberation controlee
CN108542678A (zh) * 2018-05-11 2018-09-18 石家庄高新区亿成科技有限公司 手术床板补偿装置
CN108542678B (zh) * 2018-05-11 2024-02-23 石家庄高新区亿成科技有限公司 手术床板补偿装置

Also Published As

Publication number Publication date
ZA96479B (en) 1996-08-13
EP0726069A3 (de) 1996-11-06
GB2297686A (en) 1996-08-14
GB9502436D0 (en) 1995-03-29
GB9600489D0 (en) 1996-03-13
GB2297686B (en) 1998-06-17

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